<template>
    <mu-appbar title="简易demo" class="HeaderBar">
        <img class="logo" src="../assets/logo.png">
        <mu-icon-button icon="expand_more" slot="right"/>
    </mu-appbar>
</template>
<style scoped>
    .HeaderBar {
        position: fixed;
        top: 0;
        height: 4rem;
    }
    .logo {
        width: 4rem;
        height: 4rem;
        position: absolute;
        left: 0;
        top: 0;
    }

</style>